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Posted: Tue Apr 16, 2013 6:17 pm
by farcticox1
Go to my first post, Ammo is 1/4" steel ball bearings.
I thought about a spring, and it would look neater if the magazine tube was underneath, but I couldn't find any suitable springs and the spring would take up ammo space, so I let Lady Gravity do the work with a little air assistance.

My aim was to build it for $0, it really pained me to spend $1.50 on the laser pointer, but I thought what the hell.

And yes farcticox came from arctic fox, I was trying to think of a unique user name years ago and the wife says 'look at that farctic ox' (arctic fox) on the TV, and I said 'brilliant'

If you type farcticox in Google I am on the whole first page of results, it's all me in various forums.

Posted: Wed Apr 17, 2013 4:36 pm
by farcticox1
Here is the current setup with my new accumulator tank

Image

Posted: Wed Apr 17, 2013 5:00 pm
by farcticox1
And here is the video

[youtube][/youtube]

You can notice a couple of misfires between the second and third burst bouncing on the floor, must be when the pressure drops, but not enough to stop firing.

Posted: Sun Apr 28, 2013 7:22 pm
by sagthegreat
Any more updates on this?

Posted: Mon Apr 29, 2013 4:58 pm
by farcticox1
Got it in pieces at the moment, found some sweet stainless tube at work, 10mm od, 6mm id, going to change the barrel and ammo tube to fire airsoft bb's.

Also working on the sniper version at the same time. (my other post)

Posted: Mon Apr 29, 2013 6:08 pm
by sagthegreat
can you show a picture of the damage?

Posted: Tue Apr 30, 2013 3:57 pm
by farcticox1
When I get it back together I will shoot up coke cans and see what it does.

Posted: Sat Jun 08, 2013 11:59 am
by farcticox1
So here is the final full auto, now firing 6mm airsoft bb's

Image

Ammo tube holds 100

Image


Add some 1/2" copper pipe and pvc pipe with lots of holes drilled in it


Image


Image

100 burst looks like this

[youtube][/youtube]

Posted: Sat Jun 08, 2013 12:54 pm
by Zorlord
If you are still looking for a proper magazine spring for the airsoft bb's, you could purchase a cheap "mid cap" magazine off an online retailer and steal the spring out of the magazine.

Posted: Sat Jun 08, 2013 12:56 pm
by sagthegreat
I always look forward to your work.. that is sexy

Posted: Sat Jun 08, 2013 1:57 pm
by farcticox1
Just got to add my laser pointer to it. I'm sure rate of fire is at least 6000/min, that 100 burst was under 1 sec.

Posted: Sat Jun 08, 2013 9:51 pm
by django
Great work again! though ... Is it a pain in the ass to reload that thing!?

Posted: Sun Jun 09, 2013 6:12 am
by farcticox1
It takes a couple of minutes to fill the tube for 1 second of fun.

Posted: Sun Jun 09, 2013 8:09 am
by Brian the brain
You could wrap the ammo tube around to make it more compact.
It'll work just as well.

...and add a T and removable endcap for filling.